多板式層流ファンの羽根車内の流れ解析

概要

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It is expected that a multiple-disk laminar flow fan has a very low noise level since it has no blade. But, in general, this fan has low efficiency in utilizing shear force. This paper presents a quasi three-dimensional flow analysis for the improvement of performance of a laminar flow fan. For the flow in the meridional plane, a nonviscous flow analysis using the streamline curvature method is utilized. On the other hand, the flow between parallel disks is analyzed by means of the angular momentum theory utilizing an expression for the local friction factor. The two kinds of calculations are successively repeated until the solution converges. Hence, the quasi three-dimensional flow in the laminar flow fan is analyzed. Moreover, the effects of flow rate and axial inclination angle of disk inner diameter on the flow are investigated.
一般社団法人日本機械学会の論文
1993-10-25